total rework of requests serialization

src/main/kotlin/com/github/insanusmokrassar/TelegramBotAPI/requests/DeleteMessage.kt

@@ -15,5 +15,8 @@ data class DeleteMessage(
 ) : SimpleRequest<Boolean>, MessageAction {
     override fun method(): String = "deleteMessage"
 
-    override fun resultDeserializer(): KSerializer<Boolean> = BooleanSerializer
+    override val resultDeserializer: DeserializationStrategy<Boolean>
+        get() = BooleanSerializer
+    override val requestSerializer: SerializationStrategy<*>
+        get() = serializer()
 }